BEIJING--Radioactive substances that leaked from the crippled Fukushima No. 1 nuclear power plant have spread over far broader areas of the sea than Japan has acknowledged, according to the State Oceanic Administration of China.
An Aug. 15 article in the electronic version of Science and Technology Daily, a Chinese newspaper, cited an ocean environment survey conducted off Fukushima Prefecture in the western Pacific Ocean as part of the Oceanic Administration's written reply to an inquiry by the newspaper.
The article said that radioactive substances were detected in a 252,000-square-kilometer area within 800 kilometers to the east of Fukushima Prefecture. It said the level of cesium-137 was up to 300 times higher than corresponding concentrations in waters near China. Strontium-90 was detected at levels up to 10 times higher than those found in Chinese waters.
"One cannot rule out the possibility that radioactive contaminants have entered waters under China's jurisdiction," the Oceanic Administration was reported as saying.
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